CVE-2021-36934
Vulnerability from cvelistv5
Published
2021-07-22 07:05
Modified
2024-08-04 01:09
Severity
Summary
Windows Elevation of Privilege Vulnerability
References
| Source | URL | Tags |
|---|---|---|
| secure@microsoft.com | http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html | Third Party Advisory, VDB Entry |
| secure@microsoft.com | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934 | Patch, Vendor Advisory |
Impacted products
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2022-02-10
Due date: 2022-02-24
Required action: Apply updates per vendor instructions.
Used in ransomware: Unknown
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T01:09:06.213Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://www.kb.cert.org/vuls/id/506989"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:x86:*",
"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:x64:*",
"cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2114:*:*:*:*:*:arm64:*"
],
"platforms": [
"32-bit Systems",
"x64-based Systems",
"ARM64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.2114",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1734:*:*:*:*:*:x86:*",
"cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1734:*:*:*:*:*:x64:*",
"cpe:2.3:o:microsoft:windows_10_1809:10.0.18363.1734:*:*:*:*:*:x64:*"
],
"platforms": [
"32-bit Systems",
"x64-based Systems",
"ARM64-based Systems"
],
"product": "Windows 10 Version 1909",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.18363.1734",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:x64:*",
"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:arm64:*",
"cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1165:*:*:*:*:*:x86:*"
],
"platforms": [
"x64-based Systems",
"ARM64-based Systems",
"32-bit Systems"
],
"product": "Windows 10 Version 21H1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19043.1165",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1165:*:*:*:*:*:x64:*"
],
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 2004",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19041.1165",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1165:*:*:*:*:*:x86:*",
"cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1165:*:*:*:*:*:arm64:*"
],
"platforms": [
"32-bit Systems",
"ARM64-based Systems"
],
"product": "Windows 10 Version 20H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19042.1165",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
}
],
"datePublic": "2021-07-20T07:00:00+00:00",
"descriptions": [
{
"lang": "en-US",
"value": "\u003cp\u003eAn elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003c/p\u003e\n\u003cp\u003eAn attacker must have the ability to execute code on a victim system to exploit this vulnerability.\u003c/p\u003e\n\u003cp\u003eAfter installing this security update, you \u003cem\u003emust\u003c/em\u003e manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. \u003cstrong\u003eSimply installing this security update will not fully mitigate this vulnerability.\u003c/strong\u003e See \u003ca href=\"https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7\"\u003eKB5005357- Delete Volume Shadow Copies\u003c/a\u003e.\u003c/p\u003e\n"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:T/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Elevation of Privilege",
"lang": "en-US",
"type": "Impact"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-12-28T22:36:47.285Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html"
}
],
"title": "Windows Elevation of Privilege Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2021-36934",
"datePublished": "2021-07-22T07:05:12",
"dateReserved": "2021-07-19T00:00:00",
"dateUpdated": "2024-08-04T01:09:06.213Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"cisa_known_exploited": {
"cveID": "CVE-2021-36934",
"dateAdded": "2022-02-10",
"dueDate": "2022-02-24",
"knownRansomwareCampaignUse": "Unknown",
"notes": "",
"product": "Windows",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "If a Volume Shadow Copy (VSS) shadow copy of the system drive is available, users can read the SAM file which would allow any user to escalate privileges to SYSTEM level.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Windows SAM Local Privilege Escalation Vulnerability"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-36934\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-07-22T07:15:11.013\",\"lastModified\":\"2024-07-24T16:48:35.283\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"cisaExploitAdd\":\"2022-02-10\",\"cisaActionDue\":\"2022-02-24\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Microsoft Windows SAM Local Privilege Escalation Vulnerability\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"\u003cp\u003eAn elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\u003c/p\u003e\\n\u003cp\u003eAn attacker must have the ability to execute code on a victim system to exploit this vulnerability.\u003c/p\u003e\\n\u003cp\u003eAfter installing this security update, you \u003cem\u003emust\u003c/em\u003e manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. \u003cstrong\u003eSimply installing this security update will not fully mitigate this vulnerability.\u003c/strong\u003e See \u003ca href=\\\"https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7\\\"\u003eKB5005357- Delete Volume Shadow Copies\u003c/a\u003e.\u003c/p\u003e\\n\"},{\"lang\":\"es\",\"value\":\"Una Vulnerabilidad de Elevaci\u00f3n de Privilegios en Windows\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":4.6},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.17763.2114\",\"matchCriteriaId\":\"F8D40D82-1D88-4CF1-B961-F9F28426C56B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.18363.1734\",\"matchCriteriaId\":\"3DD2BDE6-67C6-48E2-BED0-12E4CC7EE6BC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19041.1165\",\"matchCriteriaId\":\"70336A6A-DE45-4604-BE81-10DA4DF12D3F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19042.1165\",\"matchCriteriaId\":\"7AB7321A-1F89-48B3-8E5A-94791AB2BC86\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.0.19043.1165\",\"matchCriteriaId\":\"2A860F2B-0533-46F7-879E-B932E4E44F0D\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36934\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}"
}
}
Loading...